​WATCH: Black Lives Matter Rioters Torch Milwaukee (VIDEO)

WARNING: FOOTAGE CONTAINS GRAPHIC CONTENTWISCONSIN - Milwaukee burns as rioters set four buildings and a police car on fire after policer officer shoots and kills an armed man during after traffic stop. Police say the 23-year-old man was armed with a handgun at the time of the shooting. Hundreds of protesters rioted in the street setting multiple businesses on fire and chanting "black power".